./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/for_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/for_infinite_loop_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ec56fe9cac0753d00d4fed95d9e0d63200d3fd4 .................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:03:23,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:03:23,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:03:23,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:03:23,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:03:23,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:03:23,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:03:23,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:03:23,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:03:23,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:03:23,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:03:23,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:03:23,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:03:23,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:03:23,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:03:23,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:03:24,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:03:24,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:03:24,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:03:24,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:03:24,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:03:24,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:03:24,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:03:24,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:03:24,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:03:24,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:03:24,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:03:24,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:03:24,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:03:24,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:03:24,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:03:24,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:03:24,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:03:24,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:03:24,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:03:24,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:03:24,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:03:24,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:03:24,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:03:24,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:03:24,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:03:24,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 20:03:24,081 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:03:24,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:03:24,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:03:24,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:03:24,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:03:24,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:03:24,091 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:03:24,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:03:24,091 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:03:24,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:03:24,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:03:24,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:03:24,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 20:03:24,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 20:03:24,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 20:03:24,094 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:03:24,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:03:24,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:03:24,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 20:03:24,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:03:24,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:03:24,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 20:03:24,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:03:24,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:03:24,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 20:03:24,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 20:03:24,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:03:24,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 20:03:24,099 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 20:03:24,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 20:03:24,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 20:03:24,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:03:24,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ec56fe9cac0753d00d4fed95d9e0d63200d3fd4 [2021-10-15 20:03:24,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:03:24,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:03:24,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:03:24,551 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:03:24,553 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:03:24,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/loops/for_infinite_loop_1.c [2021-10-15 20:03:24,656 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/data/90ba9417b/825b196df3d142558ab0e44e868e75f9/FLAGd5fe79e69 [2021-10-15 20:03:25,170 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:03:25,170 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/sv-benchmarks/c/loops/for_infinite_loop_1.c [2021-10-15 20:03:25,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/data/90ba9417b/825b196df3d142558ab0e44e868e75f9/FLAGd5fe79e69 [2021-10-15 20:03:25,522 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/data/90ba9417b/825b196df3d142558ab0e44e868e75f9 [2021-10-15 20:03:25,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:03:25,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:03:25,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:03:25,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:03:25,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:03:25,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a14db3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25, skipping insertion in model container [2021-10-15 20:03:25,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:03:25,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:03:25,768 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/sv-benchmarks/c/loops/for_infinite_loop_1.c[418,431] [2021-10-15 20:03:25,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:03:25,793 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:03:25,809 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/sv-benchmarks/c/loops/for_infinite_loop_1.c[418,431] [2021-10-15 20:03:25,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:03:25,829 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:03:25,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25 WrapperNode [2021-10-15 20:03:25,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:03:25,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:03:25,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:03:25,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:03:25,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:03:25,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:03:25,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:03:25,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:03:25,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:03:25,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:03:25,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:03:25,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:03:25,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (1/1) ... [2021-10-15 20:03:25,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:03:25,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:25,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:25,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 20:03:26,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:03:26,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:03:26,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:03:26,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:03:26,233 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:03:26,233 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-15 20:03:26,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:03:26 BoogieIcfgContainer [2021-10-15 20:03:26,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:03:26,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 20:03:26,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 20:03:26,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 20:03:26,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:03:25" (1/3) ... [2021-10-15 20:03:26,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7601a878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:03:26, skipping insertion in model container [2021-10-15 20:03:26,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:25" (2/3) ... [2021-10-15 20:03:26,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7601a878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:03:26, skipping insertion in model container [2021-10-15 20:03:26,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:03:26" (3/3) ... [2021-10-15 20:03:26,247 INFO L111 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_1.c [2021-10-15 20:03:26,253 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 20:03:26,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-15 20:03:26,314 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 20:03:26,323 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 20:03:26,323 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-15 20:03:26,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 15 places, 19 transitions, 38 flow [2021-10-15 20:03:26,362 INFO L129 PetriNetUnfolder]: 5/19 cut-off events. [2021-10-15 20:03:26,362 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:03:26,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 19 events. 5/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-10-15 20:03:26,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 15 places, 19 transitions, 38 flow [2021-10-15 20:03:26,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 12 places, 14 transitions, 28 flow [2021-10-15 20:03:26,374 INFO L129 PetriNetUnfolder]: 3/11 cut-off events. [2021-10-15 20:03:26,374 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:03:26,388 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:03:26,389 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-15 20:03:26,389 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:03:26,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:03:26,397 INFO L82 PathProgramCache]: Analyzing trace with hash 889574253, now seen corresponding path program 1 times [2021-10-15 20:03:26,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:03:26,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049172767] [2021-10-15 20:03:26,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:03:26,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:03:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:03:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:03:26,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:03:26,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049172767] [2021-10-15 20:03:26,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049172767] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:03:26,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:03:26,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:03:26,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017756575] [2021-10-15 20:03:26,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 20:03:26,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:03:26,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 20:03:26,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 20:03:26,881 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 19 [2021-10-15 20:03:26,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 14 transitions, 28 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:26,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:03:26,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 19 [2021-10-15 20:03:26,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:03:26,934 INFO L129 PetriNetUnfolder]: 1/7 cut-off events. [2021-10-15 20:03:26,934 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:03:26,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 7 events. 1/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 0/7 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-10-15 20:03:26,936 INFO L132 encePairwiseOnDemand]: 14/19 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2021-10-15 20:03:26,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 7 transitions, 22 flow [2021-10-15 20:03:26,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 20:03:26,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-15 20:03:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2021-10-15 20:03:26,951 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5394736842105263 [2021-10-15 20:03:26,952 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 41 transitions. [2021-10-15 20:03:26,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 41 transitions. [2021-10-15 20:03:26,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:03:26,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 41 transitions. [2021-10-15 20:03:26,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:26,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:26,967 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:26,970 INFO L186 Difference]: Start difference. First operand has 12 places, 14 transitions, 28 flow. Second operand 4 states and 41 transitions. [2021-10-15 20:03:26,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 7 transitions, 22 flow [2021-10-15 20:03:26,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 7 transitions, 22 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 20:03:26,976 INFO L242 Difference]: Finished difference. Result has 9 places, 0 transitions, 0 flow [2021-10-15 20:03:26,979 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=9, PETRI_TRANSITIONS=0} [2021-10-15 20:03:26,981 INFO L334 CegarLoopForPetriNet]: 12 programPoint places, -3 predicate places. [2021-10-15 20:03:26,982 INFO L470 AbstractCegarLoop]: Abstraction has has 9 places, 0 transitions, 0 flow [2021-10-15 20:03:26,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:26,987 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 20:03:26,988 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 20:03:26,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 20:03:26,996 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 20:03:27,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:03:27 BoogieIcfgContainer [2021-10-15 20:03:27,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 20:03:27,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:03:27,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:03:27,005 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:03:27,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:03:26" (3/4) ... [2021-10-15 20:03:27,014 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 20:03:27,027 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-15 20:03:27,028 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-15 20:03:27,029 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 20:03:27,029 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 20:03:27,088 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 20:03:27,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:03:27,096 INFO L168 Benchmark]: Toolchain (without parser) took 1568.33 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 54.6 MB in the beginning and 64.5 MB in the end (delta: -9.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:27,097 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 90.2 MB. Free memory is still 71.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:03:27,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.13 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 54.4 MB in the beginning and 99.4 MB in the end (delta: -45.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:27,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.75 ms. Allocated memory is still 123.7 MB. Free memory was 99.4 MB in the beginning and 98.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:27,100 INFO L168 Benchmark]: Boogie Preprocessor took 26.80 ms. Allocated memory is still 123.7 MB. Free memory was 98.1 MB in the beginning and 96.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:27,100 INFO L168 Benchmark]: RCFGBuilder took 333.40 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 87.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:27,107 INFO L168 Benchmark]: TraceAbstraction took 763.87 ms. Allocated memory is still 123.7 MB. Free memory was 87.1 MB in the beginning and 67.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:27,108 INFO L168 Benchmark]: Witness Printer took 89.98 ms. Allocated memory is still 123.7 MB. Free memory was 67.1 MB in the beginning and 64.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:27,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 90.2 MB. Free memory is still 71.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 302.13 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 54.4 MB in the beginning and 99.4 MB in the end (delta: -45.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.75 ms. Allocated memory is still 123.7 MB. Free memory was 99.4 MB in the beginning and 98.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.80 ms. Allocated memory is still 123.7 MB. Free memory was 98.1 MB in the beginning and 96.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 333.40 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 87.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 763.87 ms. Allocated memory is still 123.7 MB. Free memory was 87.1 MB in the beginning and 67.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 89.98 ms. Allocated memory is still 123.7 MB. Free memory was 67.1 MB in the beginning and 64.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 688.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 110.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 46.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.9ms SsaConstructionTime, 73.7ms SatisfiabilityAnalysisTime, 184.8ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 20:03:27,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb1bcfdc-da65-4eed-8fe0-5a331d03d9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...